Personal Computer User Manual

Programming Considerations
http://www.motorola.com/computer/literature 6-11
6
The MVME510x routes the interrupts from the PMCs and PCI expansion
slots as follows:
DMA Channels
The PIB supports seven DMA channels. They are not functional on the
MVME510x.
Sources of Reset
The MVME510x has nine potential sources of reset:
1. Power-on reset
2.
RST switch (resets the VMEbus when the MVME510x is system
controller)
3. Watchdog timer Reset function controlled by the SGS-Thomson
MK48T559 timekeeper device (resets the VMEbus when the
MVME510x is system controller)
4.
ALT_RST∗ function controlled by the Port 92 register in the PIB
(resets the VMEbus when the MVME510x is system controller)
Hawk MPIC
PMC Slot 1
INTA# INTB# INTC#
INTD#
PMC Slot 2
INTA# INTB# INTC#
INTD#
PCIX Slot
INTA#
INTB# INTC#
INTD#
IRQ9
IRQ10
IRQ11 IRQ12